Proteus, old man of Pallene, whose outward appearance changes like an actor’s, assuming sometimes the body of a man, sometimes that of a beast, come, tell me, what is your reason for turning into all kinds of shapes, so that you have no permanent form as you constantly alter? I offer symbols of antiquity and the very first times, concerning which everyone dreams up what he will.

Notes:

1.Proteus was ‘the Old Man of the Sea’, who evaded capture by constantly changing his shape. See e.g. Homer, Odyssey, 4.400ff.; Vergil, Georgics, 4. 405-10, 440-2; Erasmus, Adagia, 1174 (Proteo mutabilior).
Vergil (Georgics, 4.391) describes him living near the headland of Pallene (on the Macedonian coast).
The idea of Proteus as a gifted actor or mime-artist is taken from Lucian, Saltatio, 19.

2.signa vetustatis primaevi et...secli, ‘symbols of antiquity and the very first times’. Pallene (see n.1.) suggested a connection with the Greek word παλαιός ‘ancient’, as the name Proteus was supposedly connected with πρώτιστος, ‘the very first’.